protester
/prəˈtestər/
noun
-
a person who publicly shows strong disagreement with something, especially by taking part in a protest
B1countableneutral
- "The protesters held signs outside the building."A2
- "She joined the protest to show her support for environmental causes."B2
- "Several protesters were arrested after the demonstration became violent."B2
Common mistakes
- protestor→protester
In American English, 'protestor' is often used, but 'protester' is the standard spelling.